(a) friend; member of an academic organization; suitor(b) adaption; settlement of an insurance claim(c) agreement in which the seller of securities agrees to buy them back at a specified time and price(d) source from which something arises; originator; prototype; model; original work (as opposed to an imitation)

(a) evolvement; gradual growth; evolution; maturation; progression(b) cipher; string of commands in a programming language (Computers); collection of instructions of the law; the codex and rules(c) middleman; agent who buys and sells property or shares etc. for other people(d) type of fuel; gasoline (British)

5) n. greenhouse

(a) rectangular traveling bag; valise(b) structure built mainly of glass in which plants are cultivated out of season; hothouse; glasshouse; conservatory(c) act of providing; provision; something that is supplied; reserve; stock; quantity of a commodity available for purchase (Economics)(d) dishonesty; immorality; decay; irregularity; unlawfulness; illegality

6) n. exertion

(a) shortened form of a word or word combination(b) putting to use; putting into action; effort; struggle; strain(c) something which is owed to a person or company; something which legally or rightfully belongs to an individual; payment; fee(d) trip in a vehicle (usually for pleasure); impelling forward (i.e. cattle drive); type of computer hardware; combined effort to accomplish a goal (i.e. fund raiser); transmission of power to machinery; impulse; inner urge

7) n. loop

(a) something which stimulates or animates; stimulus; motivation; something inspired; revelation; insight; idea(b) one fourth; neighborhood; coin worth 25 cents (used in USA and Canada); quadrant; period of three months; place, location; district, region; mercy; clemency(c) rope which has curved and doubled over itself leaving a circular opening; something which has a curved or circular shape(d) great number of persons or things; many; a lot; composed of a countless number of items

8) n. mall

(a) means of transport (car, bus, etc.); instrument; means; medium(b) lawsuit; request; right(c) person of group of people that runs and adminsters a business or other enterprise(d) shopping center; variety of stores and businesses housed within a series of connected buildings or within a single building; pedestrian walkway; promenade

9) n. advance

(a) meeting; conference; set; group of people; congregation(b) act of pretending; counterfeit; imitation of the operation or features of one system using an other system (i.e. computer simulation)(c) forward movement; progress; modernization; promotion; amount or payment of money given before it is due(d) arrangement; instruction; command; request for something; religious group

10) n. deed of surrender

(a) security; warranty; pledge; assurance(b) tag; sign; identification tag(c) reform; repair; act of repairing; state of healing or improvement(d) A deed thalegal document that temporarily transfers a property from one individual to another